Jonathan Ball and Sarah Whitney both of Watertown were Joyned in Marriage January: 5 1709/10 by Jonas bond Justice of the Peace.
Source:Pierce, Frederick Clifton. Whitney: The Descendants of John Whitney, p. 28, identifies Sarah as d/o Nathaniel Whitney and Sarah Hagar, b. 1678. However, in her father's probate file that Sarah is named as Sarah Chadwick in 1734, and the marriage of Charles Chadwick and Sarah Whitney occurred in 1699, so she couldn't have been the Sarah Whitney who married in 1710. See the article on this at Whitney Research Group.